About
Alyssum saxatile 'Summit' is a perennial that forms a compact mound reaching up to 20 cm in height. It features rosettes of grey-green foliage. In the spring, it bursts forth with numerous yellow flowers arranged in tight clusters above the leaves. This plant is drought-resistant once it is well-established and is recognized by the RHS as beneficial for pollinators.
About the genus
Alyssum includes annuals, evergreen perennials, and sub-shrubs, characterized by their simple foliage. In early summer, they produce short racemes bearing small flowers with four petals, which may be yellow or white.
Growing conditions
- Sunlight
- Full sun
- Soil type
- Chalk, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Well-drained
- Aspect
- South-facing, West-facing, East-facing
- Exposure
- Sheltered
- UK hardiness
- H5
Plant details
- Plant type
- Alpine Rockery
- Habit
- Bushy
- Foliage
- Evergreen
- Height
- 0.1-0.5 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 2-5 years
- Suggested uses
- Cottage and informal garden, Rock garden, Wildlife gardens
Care notes
- Cultivation
- Grow in moderately fertile, well-drained soil in full sun
- Pruning
- Trim plants back by a half after flowering to maintain a compact shape
- Propagation
- Propagate by sowing seed in containers in a cold frame in autumn, or by softwood cuttings in early summer
- Pest resistance
- May be susceptible to aphids
- Disease resistance
- Generally disease-free